Avtron XR45 SMARTSafeā„¢ Encoders

Avtron XR45 SMARTSafeā„¢ Encoders

A Breakthrough in Hollow Shaft Hazardous Duty Encoders

  • Fits Shafts 5/8"- 1 1/8" [16mm-30mm]
  • IECEx Rated: Zone 1 & 2, 21 & 22
  • ATEX Rated for Zone 1, 2, 21 & 22 Applications
  • Ideal for Oil & Gas Drilling
  • No fragile optics, no glass disks
  • Fully Potted Electronics
  • Up to 5000 PPR
  • Protected Against Wiring Errors
  • 3 Year No-Hassle Warranty
  • cULus Class I Division 1 Groups A,B,C,D Listed
  • cULus Class I Zone 0 Group IIC
  • cULus Class I Division 2 Groups A,B,C,D Listed
Outline Drawing
XR45 hollow shaft encoders are a unique industry first.  By combining Avtron durable magnetic encoder technology with SMARTSafe™ systems, Avtron has created a truly durable hollow shaft encoder which can be used in hazardous environments and applications.  It is ATEX, IECEx and cULus approved.  SMARTSafe encoders can be used in gas and ATEX dust hazardous environments.  Also available: shafted models (XR4F, XR485), and no-bearing modular encoders (XR56, XR85, XR115, XR125, XR850).

For applications requiring ATEX/IECEx Zone 2 or 22 or UL Class I, Division 2, Groups A,B,C,D use the XR45 directly in your application, with no barrier, isolator or cable gland required.

For applications requiring UL Division 1, ATEX/IECEx Zone 1 or 21 add the XRB3 isolator; XRB3 isolator systems enable use in Class I, Div 1 and Class I, Zone 0 applications. This permits the use of intrinsically safe wiring instead of explosion proof conduit or glands.

Unlike the competition, the Avtron SMARTSafe encoder systems are protected against short circuits, power-to-output wiring, and output-to-ground faults.

Instead of relying on a tiny optical encoder with weak bearings install the most rugged encoders available for your drilling or industrial applications.  Vibration, shock, liquids, dust and dirt won't harm SMARTSafe encoders!  Paint booths, draw works, coil tubing rigs...XR45 can keep them all working 24/7/365.

Select the Avtron XR45 SMARTSafe™ encoder to eliminate encoder problems in your hazardous duty application!
Operating Power: (add load and cable drive current as req'd)
     Division 1, Zone 1 (XRB3): 12-24VDC In/Out, 150 mA
     Division 2, Zone 2: 5-24VDC In/Out, 150mA
Output Format: A Quad B with marker (A,/A, B,/B Z,/Z)
Frequency Range: 0 to 165 KHz
Maximum Cable Length:
     Division 1, Zone 1: Encoder 500' Isolator 1000'
     Division 2, Zone 2 (5 to 12 VDC in): 500'
     Division 2, Zone 2 (15 to 24 VDC in): 250'
Temperature: -40°C to 80°C (storage -40°C to 100°C)
Environmental: IP54 (see manual for details)
Vibration: 5-2000Hz, 20G, 100G Shock
Weight: 10-12lbs [4.5-5.5kg]
     ATEX/IECEx Zone 1 & 21 Group IIC
     cULus Class I Div I and Zone 0 Group A,B,C,D*
     ATEX/IECEx Zone 2 & 22 Group IIC
     cULus Class I Div. 2 Groups A,B,C,D
*See installation drawings for Warnings and Limitations.
  • Directly replaces Baumer/Hubner EEx HOG 161 & other HOG models
  • Eliminates large & costly flange adapters & flowerpots
  • Fits US explosion-proof motors with stub shafts from 5/8" to 1 1/8"
  • Fits European ATEX/IECEx rated motors with 16mm straight, 17mm taper shaft center-bolt systems & 16-30mm stub shafts
  • Self-Diagnostic LED and Alarm Output
Industry General Food & Beverage Pulp & Paper Wood Products Wind Power Crane & Hoist Metals Mining Marine Oil & Gas

Light Mill Duty

AV20, AV25, AV6A, AV6M, Avtron Elevator Encoder, Cables and Connectors, Encoder Couplings, Encoder Programming Tool, HS25A, HS35A, HS6A, K661, SC65

Mill Duty

AV32, Cables and Connectors, Encoder Couplings, HS35M, HS35X, HS6M, K661, M185, M3, M3(small), RAHS35M

Heavy Mill Duty

AV115, AV125, AV44, AV45, AV56, AV56-Wind, AV56S, AV67, AV85, AV850, AVSK, Cables and Connectors, Carlen Replacement, HS44, HS45, K661, M4, M4(small), XP5, XR115, XR12, XR125, XR45, XR4F, XR5, XR56, XR67, XR85, XR850, XR97, XRB1, XRB2, XRB3

Severe Mill Duty

AV12, AV30, AV485, AV5, AV685, Cables and Connectors, Carlen Replacement, Encoder Couplings, HS40, K661, M484, M6, M6C, M7, XP5, XPH1, XPH8, XR12, XR485, XR5, XR685, XR97, XRB1, XRB2, XRB3,
XR45 SMARTSafe™ encoders can directly replace many competitive models including:

Baumer Hubner:
EEx HOG 161, HOG8, HOG9, HOG10, HOG11, HOG131, HOG161, HOG163, HOG165 encoders

HS35, H37, H38, H40, L25 explosion proof and intrinsically safe encoders
924-08062-001, 924-08062-002, 924-08062-003, 924-08063-001, 924-08063-002, 924-08064-001, 924-08064-002, 924-08172-001, 924-08172-002, 924-08173-001, 924-08173-002, 924-08174-001, 924-08174-002, EM-DR1-IS-5-RTB-24V/V, EM-DR1-IS-5-RTB-24V/4, EM-DR1-IS-5-RTB-24V/OC intrinsic safety barriers & systems

BEI Ideacod encoders:

Dynapar encoders:
X25 encoder

RSI 58X-,RVI 58X-, RVI84, 14-1436X, 14-14361, 14-14366

And many other hazardous area, intrinsically safe and explosion-proof ATEX rated encoders. 
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In This Section

  • ATEX

    ATEX is a directive used worldwide for equipment, including encoders, to be used around or in explosive atmospheres. ATEX certified equipment is NOT necessarily interchangeable with US-based UL Class/Division or Class/Zone rated equipment, nor IECEx rated equipment. ATEX is an alternative and different system. Review our full line of Avtron Explosion Protected, ATEX certified encoders, including M6, M6C and XR models.

  • Encoder

    A device which indicates position and speed via a set of digital outputs. Incremental encoders output quadrature (A Quad B) signals, and may add a marker pulse once per revolution.  Absolute encoders typically indicate position via a digital message, a set of parallel outputs, or analog values.

  • Explosion Protected

    Also known as Flameproof, explosion protected equipment has additional protection/safety enhancements for use in explosive atmospheres. Explosion Protected devices maybe placed directly into hazardous areas within their nameplate rating. No additional equipment is required if installation instructions are followed properly. By comparison, Intrinsically Safe devices may require the use of additional, external protection/current limiting devices outside of the hazardous area. Avtron offers hollow shaft M6C Explosion Protected encoders.

  • Hollow Shaft

    Hollow Shaft encoders mount by passing the shaft of the motor into or through the encoder. Hollow shaft encoders are easy to mount and replace but are vulnerable to damage. Also, the weight of the encoder must be considered for small motor shafts < 0.75" diameter. Avtron offers a full range of hollow shaft encoders, including: AV685, HS25A, HS35A, HS35M, M3, M4, M6, M7, XP45.

  • Incremental Encoder

    An encoder that produces pulses in proportion to distance moved or rotated. Incremental encoders can also have a marker pulse Z, Z NOT (, ) once per revolution to provide a position reference. Avtron produces a full range of incremental rotary encoders.

  • Intrinsically Safe / Intrinsic Safety

    Is a system designed to improve equipment safety by limiting spark energy values in equipment used in hazardous areas.  Intrinsic Safety is a different system of protection than Explosion Proof or Flameproof.  Many Explosion Proof and Flameproof encoders can be replaced with Intrinsically Safe encoders, provided the installation instructions are followed correctly and the system is compliant with the approved installation drawing.  Intrinsically safe Avtron XR encoders are available in Level 1 protection and Level 2 protection. 

  • Isolated Outputs

    Isolated Outputs provide two or more completely separate output signals from the encoder. These separate signals can be wired to two or more devices, or used for redundant control systems for more uptime. Avtron isolated encoder outputs are always created using fully redundant electronics and sensors, isolated from each other and from the housing for maximum reliability.

  • Magnetic Encoder

    Magnetic and magnetoresistive encoders typically use a magnetized rotor with north and south poles lined up around the perimeter of the disk. A magnetoresistive sensor detects the transitions, and these are the counts or pulses generated by the encoder. Magnetic encoders withstand dirt, dust, water, and temperature changes far better than optical encoders.

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